BWF Envirotec air conditioning filters absolute filters

Absolute filters
Elements of the final filtration stage in ventilation systems

The classification of clean rooms and other controlled work environments is specified in demanding technical standards. Therefore the filters used there must meet the highest standards of performance and effectiveness.

Filtration class:

H10, H11, H12, H13, H14, U15 acc. standards:

EN 1822:2009

Standard dimensions:

Frame dimensions (width x height):

305 x 305 mm
305 x 610 mm
457 x 457 mm
610 x 610 mm

Frame thickness:

68, 78, 150, 292 mm

Material:

Waterproof paper is made from high efficiency fibreglass, formed of micro-fibreglass wrap and a mixture of synthetic fibres.

Construction:

Filter made from pleated materials is called minipleat. Depending on the type, it can be separated by an aluminium foil separator or cotton threads separator, or glue. Filter medium is placed in an MDF frame (wooden board), made from aluminium or galvanised sheet. Normally, from the front of the frame an elastic polyurethane seal is placed.

Technical data absolute filters:

FILTER CLASS		H13	H13	H13
Frame thickness	mm	78	150	292
Minipleat thickness	mm	58	120	120
Type 610 x 610 mm	m³/h	670	1920	1920
Type 305 x 610 mm	m³/h	335	950	950
Type 305 x 305 mm	m³/h	155	440	440
Initial pressure drop	Pa	150	250	250
Recommended final pressure drop	Pa	450	550	550
Max. permissible operating temperature	°C	80	80	80

Application:

Used as final stage filters in air-conditioning and ventilation systems. Used in many sectors such as: medicine, chemical industry, pharmacological industry and many others where high air quality is required.